24. If you want to \ A. redial the telephone.

B. know the free telephone number to a computerized switch in another country. C. find another person to call you back. 25. \ A.. calling via another country.

B. finding a person in the third country to call. C. calling through three countries.

26. International Discount Telecommunications uses A. \ B. \

C. \

27. According to the spokesman, a band of these tiny American discounters will be A. prosperous.

B. limited to an extent. C. short-lived. 28. ATST refers to

A. American Telephone & Telex B. Associated Telephone & Television C. American Telephone & Telegraph

29. World Connect and World Reach is purposely . A. to encourage the foreigners to use American calls. B. to supplement the ``call-home \

C. to enlarge the communication between the U. S. and the world. 30. AT6T's new services have been declined by A. Iraq.

B. Japan. C. Syria.